{"product_id":"oem-lennox-relay-39h13","title":"OEM Lennox Relay — 39H13","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e39H13\u003c\/strong\u003e relay is an electromechanical switching device that controls the flow of power to components such as blower motors, fan motors, and other electrical loads inside your Lennox furnace or air handler. When the control board or thermostat sends a low-voltage signal, the relay energizes and closes its contacts to deliver line voltage to the load — making it a critical link in your system's operating sequence.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A failing \u003cstrong\u003e39H13\u003c\/strong\u003e relay may cause a blower or motor that won't start, intermittent operation, chattering or buzzing from the relay, burnt or pitted contacts, or a system that runs continuously and won't shut off. Heat-related contact wear is the most frequent cause of failure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Relays must be matched to the correct coil voltage and contact rating for safe, reliable switching. The Lennox \u003cstrong\u003e39H13\u003c\/strong\u003e is built to the exact electrical specifications your equipment requires, ensuring dependable operation and protecting downstream components from voltage irregularities. Installing the factory-specified relay safeguards system performance and keeps your Lennox warranty intact.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081107259763,"sku":"LNX-39H13","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-relay-fan-LNX-39H13.jpg?v=1783763312","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-relay-39h13","provider":"National HVAC Parts","version":"1.0","type":"link"}